Chapter 10 QuadratiC EQuations 377
- x
xx
xx x
xx x
−
+
=
−
−−=+
−+=+
1
23
6
2
1262 3
(^2321218)
()()()
()()
−−−−
−−=
−+=
12 18 12 18
15 16 0
16 10
2
xx
xx
xx
x−−= +=
++
16 010
16 16
x
−−
==−
11
xx 16 1
- x
x
x
x
x
x
x
+
−
+ +
−
= +
+
+
2
3
21
9
12 3
3
2
2
Denominatorfactored:
xx
x
xx
x
x
xx
x
−
+ +
−+
= +
+
=− +
−
3
21
33
12 3
3
33
3
()()
LCD( )( )
()(() ()()
()()
()
x x
x
xx x
xx
x
+⋅+
−
+− +⋅ +
−+
=−
3 2
3
3321
33
3 (()
()() ()()
x x
x
xx xxx
x
+⋅ +
+
++++=− +
+
3 12 3
3
3221 3123
(^25) xxxxx
xx xx
++ += −−
++=−−
62 112339
7712 33 9
2
22
−− −− −−
=−
xx xx
x
22
2
77 77
011440 16
0114 4
11 40 40
x
xx
xx
−
=+−
+= −=
()()
−− 44 ++
=− =
=−
44
11 44
4
11
xx
x